package com.example.win.android_banduyujia.peopleactivity.ui.polites;

/**
 * Created by Win on 2015/9/18.
 */
public class MoveAnimation implements Animation {

    private boolean firstFrame = true;

    private float startX;
    private float startY;

    private float targetX;
    private float targetY;
    private long animationTimeMS = 100;
    private long totalTime = 0;

    private MoveAnimationListener moveAnimationListener;

    /* (non-Javadoc)
     * @see com.polites.android.Animation#update(com.polites.android.GestureImageView, long)
     */
    @Override
    public boolean update(GestureImageView view, long time) {
        totalTime += time;

        if(firstFrame) {
            firstFrame = false;
            startX = view.getImageX();
            startY = view.getImageY();
        }

        if(totalTime < animationTimeMS) {

            float ratio = (float) totalTime / animationTimeMS;

            float newX = ((targetX - startX) * ratio) + startX;
            float newY = ((targetY - startY) * ratio) + startY;

            if(moveAnimationListener != null) {
                moveAnimationListener.onMove(newX, newY);
            }

            return true;
        }
        else {
            if(moveAnimationListener != null) {
                moveAnimationListener.onMove(targetX, targetY);
            }
        }

        return false;
    }

    public void reset() {
        firstFrame = true;
        totalTime = 0;
    }


    public float getTargetX() {
        return targetX;
    }


    public void setTargetX(float targetX) {
        this.targetX = targetX;
    }


    public float getTargetY() {
        return targetY;
    }

    public void setTargetY(float targetY) {
        this.targetY = targetY;
    }

    public long getAnimationTimeMS() {
        return animationTimeMS;
    }

    public void setAnimationTimeMS(long animationTimeMS) {
        this.animationTimeMS = animationTimeMS;
    }

    public void setMoveAnimationListener(MoveAnimationListener moveAnimationListener) {
        this.moveAnimationListener = moveAnimationListener;
    }
}
